Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2007-09-18
2007-09-18
Mruk, Brian (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S294000, C510S295000, C510S297000, C510S298000, C510S327000, C510S349000, C510S394000, C510S438000, C510S441000, C510S475000
Reexamination Certificate
active
10480144
ABSTRACT:
A particulate composition comprising particles which consist of a shell wall surrounding a hydrophilic core, wherein the shell wall is formed from a polymeric coacervate and wherein the particles comprise a polymeric amphipathic stabiliser. Also claimed is a process of producing a particulate composition comprising particles which consist of a shell wall surrounding a hydrophilic core, comprising the steps of a) forming an aqueous liquid that contains a wall building material that is capable of forming the shell wall by coacervation, b) dispersing the aqueous liquid into a water immiscible liquid, which comprises a stabilising substance to form a dispersion that comprises aqueous droplets dispersed in a continuous phase of water immiscible liquid, c) subjecting the dispersion to coacervation conditions, such that the wall building material coacervates at the surface of the aqueous doplets, characterised in that the stabilising substance comprises a polymeric amphipathic stabiliser. Preferably the particulate composition obtainable by the process contains an active ingredient and is used in a detergent composition. The active ingredient preferably comprises any of detergency building ingredients, a buffering system and/or a sequesterant and/or detergent builder. Citric acid is a particularly preferred active ingredient.
REFERENCES:
patent: 5324445 (1994-06-01), Langley et al.
patent: 5460817 (1995-10-01), Langley et al.
patent: 2004/0089961 (2004-05-01), Wulff et al.
patent: 0626445 (1994-11-01), None
patent: WO97/24178 (1997-07-01), None
patent: 92/20771 (1992-11-01), None
patent: 99/01533 (1999-01-01), None
Grey Bryan David
Mistry Kishor Kumar
Ciba Specialty Chemicals Water Treatments Ltd
Loggins Shiela A.
Mruk Brian
LandOfFree
Process for making polymeric particles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for making polymeric particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making polymeric particles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3754576